669314976 has 96 divisors (see below), whose sum is σ = 2017612800. Its totient is φ = 192142080.

The previous prime is 669314963. The next prime is 669314993. The reversal of 669314976 is 679413966.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3385 + ... + 36743.

It is an arithmetic number, because the mean of its divisors is an integer number (21016800).

Almost surely, 2^669314976 is an apocalyptic number.

669314976 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669314976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008806400).

669314976 is an abundant number, since it is smaller than the sum of its proper divisors (1348297824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669314976 is a wasteful number, since it uses less digits than its factorization.

669314976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33402 (or 33394 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 669314976 is about 25871.1224340963. The cubic root of 669314976 is about 874.7356920335.

The spelling of 669314976 in words is "six hundred sixty-nine million, three hundred fourteen thousand, nine hundred seventy-six".